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UPSC Exam  >  UPSC Tests  >  Science & Technology for UPSC CSE  >  Test: Electricity & Circuits - UPSC MCQ

Test: Electricity & Circuits - UPSC MCQ


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15 Questions MCQ Test Science & Technology for UPSC CSE - Test: Electricity & Circuits

Test: Electricity & Circuits for UPSC 2024 is part of Science & Technology for UPSC CSE preparation. The Test: Electricity & Circuits questions and answers have been prepared according to the UPSC exam syllabus.The Test: Electricity & Circuits MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Electricity & Circuits below.
Solutions of Test: Electricity & Circuits questions in English are available as part of our Science & Technology for UPSC CSE for UPSC & Test: Electricity & Circuits solutions in Hindi for Science & Technology for UPSC CSE course. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free. Attempt Test: Electricity & Circuits | 15 questions in 20 minutes | Mock test for UPSC preparation | Free important questions MCQ to study Science & Technology for UPSC CSE for UPSC Exam | Download free PDF with solutions
Test: Electricity & Circuits - Question 1
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If a bulb does not light up when connected to a cell, which of the following could be the reason?

Detailed Solution for Test: Electricity & Circuits - Question 1
If a bulb does not light up, it often means that the circuit is not complete. For the bulb to glow, the circuit must provide a continuous path for the electric current to flow through the bulb. If there is any break in this path, the bulb will not light up.
Test: Electricity & Circuits - Question 2
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Why are rubber and plastic used in electrical appliances?

Detailed Solution for Test: Electricity & Circuits - Question 2
Rubber and plastic are used in electrical appliances primarily for insulation purposes. They prevent accidental electric shocks by covering wires and components, ensuring that electricity flows only through the intended paths and reducing the risk of electric hazards.
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Test: Electricity & Circuits - Question 3
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Electricity to the bulb in a torch is provided by the _____.

Detailed Solution for Test: Electricity & Circuits - Question 3

The electricity to the bulb in a torch is provided by the electric cell. The electric cell is like a small power source that gives energy to make the bulb light up.

Test: Electricity & Circuits - Question 4
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A battery is
Detailed Solution for Test: Electricity & Circuits - Question 4

In a battery two or more cells are combined in such a way that (+) terminal of one cell is joined to (-) terminal of other

Test: Electricity & Circuits - Question 5
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Cell is a device which
Detailed Solution for Test: Electricity & Circuits - Question 5

In a cell, chemicals are used to produce potential difference.

Test: Electricity & Circuits - Question 6
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Why does an electric bulb glow in a circuit?
Detailed Solution for Test: Electricity & Circuits - Question 6

An electric bulb glows in a circuit because the circuit gives a way for electricity to move through it. This flow of electricity through the bulb's filament makes it light up. So when the circuit is complete and the current can pass through, the bulb will glow.

Test: Electricity & Circuits - Question 7
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What is the primary purpose of an electric cell in a torch?
Detailed Solution for Test: Electricity & Circuits - Question 7
An electric cell provides the electricity needed for the bulb in a torch to light up. It produces electricity through chemical reactions within it, which then flows through the circuit to illuminate the bulb. This fundamental component allows portable lighting devices like torches to function.
Test: Electricity & Circuits - Question 8
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Which of the following is NOT a function of an electric cell?
Detailed Solution for Test: Electricity & Circuits - Question 8
An electric cell does not act as a conductor of electricity; rather, it serves as a power source by converting stored chemical energy into electrical energy. Conductors are materials that allow electricity to flow through them, which is different from the function of an electric cell.
Test: Electricity & Circuits - Question 9
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A bulb has
Detailed Solution for Test: Electricity & Circuits - Question 9

A bulb has a filament which glows and two terminals which are joined to two terminals of the battery.

Test: Electricity & Circuits - Question 10
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Why should you never connect the two terminals of an electric cell directly?
Detailed Solution for Test: Electricity & Circuits - Question 10
Connecting the two terminals of an electric cell directly without a proper circuit can cause the chemicals inside the cell to be used up rapidly, leading to the cell's quick depletion. This is because a direct connection creates a short circuit, which is harmful to the cell's longevity.
Test: Electricity & Circuits - Question 11
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What is the purpose of a switch in an electric circuit?
Detailed Solution for Test: Electricity & Circuits - Question 11
A switch controls the flow of electricity in a circuit by either opening (breaking) or closing (completing) the circuit. This allows you to turn electrical devices on or off as needed.
Test: Electricity & Circuits - Question 12
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How can you determine if a material is a conductor or an insulator using a simple circuit?
Detailed Solution for Test: Electricity & Circuits - Question 12
To determine if a material is a conductor or an insulator, you can include it in a simple circuit and observe if the bulb glows. If the bulb lights up, the material is a conductor; if not, it is an insulator.
Test: Electricity & Circuits - Question 13
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Which of the following materials is NOT a good conductor of electricity?
Detailed Solution for Test: Electricity & Circuits - Question 13
Plastic is not a good conductor of electricity; it is an insulator. Insulators like plastic are used to cover electrical wires to prevent accidental shocks by keeping the electricity contained within the wires.
Test: Electricity & Circuits - Question 14
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What material is used to make the filament in a torch bulb?
Detailed Solution for Test: Electricity & Circuits - Question 14
The filament of a torch bulb is made of tungsten. Tungsten is used because it has a high melting point, allowing it to glow brightly without melting when electricity passes through it. This makes it ideal for producing light in incandescent bulbs.
Test: Electricity & Circuits - Question 15
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How does a closed electric circuit ensure that a bulb lights up?
Detailed Solution for Test: Electricity & Circuits - Question 15
A closed electric circuit provides a continuous path for the electric current to flow from one terminal of the electric cell to the other terminal through the bulb. This flow of current through the filament of the bulb makes it glow.
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Important Questions for Electricity & Circuits

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